Metal brake-beam



T. L. BURTON.

METAL BRAKE BEAM.

APPLICATION FILED APR. t. 1915.

Patented May 11, 1920.

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WIT-N ESSZSJM w M UNITED STATES PATENT OFFICE.

THOMAS L. BURTON, OF ST. LOUIS, MISSOURI, ASSIGNOR TO AMERICAN BRAKECOMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

METAL BRAKE-BEAM.

Specification of Letters Patent. Patented May 11, 1920.

Application filed April 1, 1915. Serial No. 18,521.

T 0 all whom it may concern:

Be it known that I, THoMAs L. BURTON, a citizen of the United States,and a resident of St. Louis, in the State of Missouri, have invented acertain new and useful Improvement in Metal Brake-Beams, of whichimprovement the following is a specification.

This invention relates to brake beams for railway vehicles, and has forits object to provide a single integral beam comprising a body portionof uniform section, such as an I, T, channel, angle, or other commercialshape having a web and a flange, and trunnions formed at the endsthereof. These beams may be formed in any suitable manner, such as bycasting, forging, or otherwise, but a preferred way is to roll the sections out in continuous lengths with trunnions connected between thebody portions.

In the accompanying drawing: Figures 1, 2, 3 and 4 are, respectively, aplan, transverse section, end elevation and side elevation of one formof beam embodying my improvement, and in which the body or tion is an Isection; Figs. 5, 6, 7 and 8, are similar views showing a beam formed ofa T section; Figs. 9, 10, 11 and 12, similar views showing a beam formedof a channel section; and Figs. 13, 14, 15 and 16, similar views showinga beam formed of an angle section.

In all of these constructions it will be observed that the body portionof the beam is formed of a uniform section having a horizontal webmember, 1, and one or more flanges, 2, at one or both sides of the web,while the cylindrical trunnions, 3, are formed integral therewith at theopposite ends of the beam. This comprises a very simple, strong anddurable construction of brake beam, and one easily handled, light, andmore economical than standard forms heretofore used.

aving now described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A brake beam composed of a standard commercial shape, the ends ofwhich are forged to provide a cylindrical trunnion at each end,substantially as described.

2. A device of the class described, composed of an I-beam, each end ofthe beam being forged to provide a cylindrical trunnion adapted tosupport braking means, substantially as described.

THOMAS L. BURTON.

Witnesses C. C, ZIEGLER, F. G.W1LLIAMsoN.

